<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <link rel="stylesheet" href="http://at.alicdn.com/t/font_939373_y34rkw5xzh.css">
    <style>
        .search{
            width: 250px;
            height: 25px;
            padding: 5px 25px;
            display: flex;
            border-radius: 30px;
            background: #eee;
            align-items: center;
        }
        input{
            flex: 1;
            border: none;
            background: #eee;
            outline:none;
        }
        button{
            border: none;
            background:#eee;
            outline: none;
        }
    </style>
</head>
<body>
    <div class="search">
        <input type="text" placeholder="搜索">
        <button class="iconfont">&#xe651;搜索</button>
    </div>
</body>
</html>